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. 2024 Jul-Aug;80(4):433-441.
doi: 10.1016/j.mjafi.2023.03.011. Epub 2023 May 9.

Comparative evaluation of efficacy of two Class II correctors in treatment of skeletal Class II malocclusion: A multicenter randomized controlled trial

Shiv Shankar Agarwal  1 , Dinesh Chaudhary  2 , Sanjeev Datana  3 , Dhruv Jain  4
Affiliations

Comparative evaluation of efficacy of two Class II correctors in treatment of skeletal Class II malocclusion: A multicenter randomized controlled trial

Shiv Shankar Agarwal et al. Med J Armed Forces India. 2024 Jul-Aug.

Abstract

Background: This article aims to compare clinical efficacy of newly introduced PowerScope 2 appliance with Forsus FRD in the treatment of Skeletal Class II malocclusion.

Methods: This randomized controlled trial studied 40 patients at two centers (20 patients at each center, divided into two groups of 10 patients each as Group 1: Forsus FRD and Group 2: PowerScope 2 appliance. The skeletal, dental, soft tissue, and airway changes were noted at T0 (pretreatment), T1 (preappliance therapy), and T2 (postappliance therapy). Acoustic Pharyngometry (Eccovision® Acoustic Pharyngometer) was done to ascertain changes in mean airway volume and area with both modalities noninvasively. Treatment duration and chairside time in appliance installation and removal were noted. Patient comfort was compared using a customized questionnaire survey.

Results: A significant change was observed in skeletal, dental, soft tissue, and airway parameters after treatment with both modalities (p-value <0.05 for all) with no significant intergroup difference (p-value >0.05). Chairside time spent in appliance insertion was significantly lower with PowerScope 2 appliance (10.33 min) as compared to the Forsus FRD appliance (18.28 min) (p-value <0.05). Visual Analogue Scale scores for parameters such as problems in mastication, problems in speech, and problems in oral hygiene maintenance were significantly lower with PowerScope 2 appliance as compared to the Forsus FRD appliance (p-value <0.05).

Conclusions: Although both modalities are effective in the management of Class II malocclusion, the PowerScope 2 appliance scores better in terms of lesser chairside time in appliance installation and better patient comfort.

Keywords: Class II; Forsus FRD; PowerScope 2; Randomized controlled trial.

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Figures

Fig. 1
Fig. 1
PowerScope™ 2 kit comprising of (A) Hex head driver with magnetic sleeve; (B) PowerScope™ 2 appliance right and left side; (C) Crimpable shims.
Fig. 2
Fig. 2
(a) Acoustic Pharyngometry work station, (b) wave tube, (c) mouthpiece.
Fig. 3
Fig. 3
Acoustic Pharyngogram showing mean volume, mean area and minimum distance (Trail 1: Purple line – T1 Prefunctional, Trail 2: Green line- T2 Postfunctional).
Fig. 4
Fig. 4
Intergroup comparison of means of skeletal parameters studied.
Fig. 5
Fig. 5
Intergroup comparison of means of dental parameters studied.
Fig. 6
Fig. 6
Intergroup comparison of means of soft tissue parameters studied.
Fig. 7
Fig. 7
Intergroup comparison of means of airway parameters studied.
Fig. 8
Fig. 8
Intergroup comparison of means of patient comfort parameters studied.
Image 1
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